very reasonable goals.
I did grab 5 new cards and got them all maxed out to tier 3, so now I go back and forth between various builds, currently I am running what I consider a tank build.
Slow and Steady
Iron lung
Fool me once
Kick in the butt.
This combo makes you very hard to kill, gives you enough time to retaliate or escape, I have survived and beaten posse that have come for me and attacked.
The main thing I sometimes swap is Ill drop Kick in the butt for The unblinking eye, which gives you 15 seconds of extra dead eye, so depending on your tonic situation and fighting style.....I am trying it both ways, I like it the way it is now without Unblinking.
Anyway, good luck with your goal, you can do it.